Air-moistener.



R. w HARDIE.

AIR MOISTENER.

APPLICATION FILED FEB. 23. IQIB- 1959 0 6 H UEiI w n 5] vwentoz Patented Mar. 4,1919.

N. m a 2 L... Eli: z 20 Ma 5 ht J u illllllllllllllllllllllll l11111111111111! ngnrrnn snares rnrnnr orr cn ROBERT W. HARDIE, 0]? WHITE PLAINS, NEW YORK.

AE-MDISTENER.

Specification of Letters Patent.

Patented Mar. a, 191m.

Application filed February 23, 1918. Serial No. 218,903.

.To all whom it may concern: 7

Be it known that 1, ROBERT W. HARDIE, a

. citizen of the United States, and resident of indoor atmosphere.

' One of the principal objects of the invention is to provide a device, simple in construction, effective in, operation, durable in use,- and adapted to be used in series with a radiator, performing the function's of a radiator as well as those of an air moistener, and so cooperating with a radiator as to become therewith in effect one instrument capable of heating and moistening the air.

The invention has for a further object to provide means for enabling the air moistener to cooperate with a radiator at the inlet end of a radiator, so that theheating medium, either steam, vapor or hot water, may first pass through the air moistener and thereby impart heat to the air moistener at the highest temperature of the heating medium, instead of using the heating mef ,dium at the temperature maintained at the return end of the radiator.

' The invention is also designed to provide means for enabling air and Water of condensation to be readily removed from the air moistener when steam or vapor is used as a heating med1un1,.and tor enabhng air' to be readily removed therefrom when ,hot

water is used as a heating medium, and

thereby enable the device to be used with I accompanying drawings, wherein-is shown the preferred embodiment of the invention; but it is understod that changes, varlatlons,

pipe.

usual screw nipples.

and modifications may be resorted towith out changing the scope of the invention.

In describing the invention in detail reference is had to the accompanying drawings, which form -a part of thisspecification, and wherein like reference characters denote corresponding parts throughout the several views and wherein:

4 Figure 1 is a side elevation of an air moistener embodying my invention, connected with a radiator and Fig. 2 is a vertical longitudinal section taken on the line 2--2 of Fig. 3.

with a supply Fig. 3 is a plan of the air moistener shown in F ig; 1 detached from the radiator and supply pipe.

Fig. 4 is a plan of the body of the air moistener shown in Fig. 1 with the to removed and disconnected from the radiator and supply pipe.

Fig. 5 is a vertical cross-section taken on" V the line 5-5 of Fig. 3.

As illustrated in the drawings, 1 represents sections of a radiator of ordinary construction of the hot water pattern, connected together at top and bottom with the The steam pattern radiator may be used instead of the hot water pattern when desired. The dis- 'charge end of the radiator is shown provided with a return pipe 2. I

The inlet end of the radiator is shown connected with the body of the air moistener by means of an upper nipple 3 and lower nipple 4%, the lower nipple 4 being in line with the nipples connecting-the lower ends of the radiator sections.

The air moistener comprises topped water receptacle 8, having a bottom 5, and vertical wall 6. A heating chamber 9 is provided, extending continuously around the vertical wall of the receptacle, and is formed by the wall 6 of the receptacle and an outer wall 7 that extends upward from the bottom of the device and is connected with the upper margin of the wall 6.

A conduit 10, extends along the central portion of the bottom of the water receptacle and communicates with opposite ends of the heating member. The heating member is provided with inlet and outlet apertures formed in the outer wall 7, at opposite ends of the device substantially in line with said conduit.

The inlet aperture of the air moistener an \open-,

connected with an inlet valve 11 having a supply pipe 12 connected therewith.

When hot water is used as a heating medium the air moistener is preferably connected with a radiator section by means oi an upper nipple 3 and lower nipple 4, as

I shown in the drawings, and. although such connection may be used with a steam heated radiator the upper connection is not essential in such .cases. I

By means of such construction the air that accumulates in the heating member when hot water is used as a heating medium rises to the top and will pass out of the the air moistener through the supply pipe and inlet valve and passes through the conaduit 10 into the radiator section, at the same time passing into the heating chamber 9 to heat the water in the water chamber 8.

Where vapor is used as a heating medium it is preferable to follow the practice now in use of letting the vapor into the radiator at the top of one of the end sections, and in order to carry out that arrangement the air, moistener may be connected with the radiator section in the same manner as shown in Fig. 1, but at the discharge or return end of the radiator instead of at the inlet end. In cases where a nipple connection is made between the up per part of the air moistener and a radiator section, it is sometimes desirable to make an aperture through the inner wall 6 in order to insert a wrench to secure the nipple in place, and that aperture maybe afterward closed by means of a plug 15.

Water is supplied to the interior of the water chamber 8 by hand or by means of a pipe 14:, connected with the water supply of a building and regulated by theusualfloat valve if so desired.

It is not essential thatthe air moistener be connected with the end section of a radizltor, and in many instances it is preferable to use it independently of a radiatorv and two or more air moisteners may be joined together by means of nipples to form a. battery of any num er of air moisteners desired.

In some cases, especially where the air moisteners are used in connection with indirect heating stacks of an indirect heating system, no top is'needed for the air moistener, but where the air moistener is located within the rooms of a building it is prefer able touse a topsuch as is shown in the accompanying drawings, in which the body 16 of the top is provided with perforations 17 and a downwardly extending flange 18 1,29t,es3

with slots 19 formed in the margin thereof. The marginal slots 19 of the top plate permit air from outside the body of the moistener to enter the interior thereof and inducev an upward current of vaporized air through the perforations 17 or openings otherwise formed in the top plate.

At times it is desirable to restrict the pas-. sage of moistened air through the openings of the top plate, and to that end a grid20 having longitudinal bars '21 is provided, preferably on the under side of the top plate and provided with a stud 22 having an operating handle23, the stud operating in a slot 24. formed in the top plate, so that by sliding the stud inthe slot, the bars 21 of the grid may be brought under the open ings in the top plate when the openings of the tOp plate are closed, the openings 19 in the vertical wall of the top plate serve as vents and prevent steam from forming supplied to the water receptacle and the heating medium islet into the heating chamber, the heat therefrom evaporates the water in the receptacle and converts it into aqueous vapor, The vapor passes out of the water chamber through the openings in the'top plate and is quickly diffused into the atmosphere. The quantity of vapor diifused into .the atmosphere is regulated by the sliding grid in connection with the openings in the top plate, which permit only the desired amount of moisture to pass out of the water chamber, the remainder being held back so that it may recondense in the water receptacle. The air and water of condensation are removed from the heating chamber in the manneralready described.

In the construction shown, the vertical wall 6' of the water receptacle extends as high as the outer wall 7 5 but that is not es sential.

The device is especially adapted to be used in connection with a vapor, or vapor-- vacuum heating system, in that the heating, Q

medium may be let into the upper part of the heatin chamber at one end of the de-' vice, and a ter passing continuously around the water receptacle, may be discharged from the lower part of the heating chamber at the opposite end of the device.

I The longitudinal condu t 10 permlts the heating medium to flow directly from one end to the opposite end of the device and insures a positive and even distribution of the heating medium to the water in the receptacle. The conduit 10 is of especial advantage iao Matc es v when the device isused in connection'with' a radiator. In such cases, the water of con densation from the radiator is free to pass readily through the conduit, back into a 5 supply pipe when a one pipe steamheating system 1s used. And when the device is used with a hot water heating system the conduit enables the heating medium to pass directly through the conduit without going 10 through the heating member.

1 extending continuously around the side walls of said water receptacle, the receptacle v and heating chamber being separated only by said side walls; and a conduit extending along the central portion of the bottom of 20 said water receptacle and communicating with opposite'ends of said heating chamber, said chamber-being provided with inlet and outlet apertures substantially in line with said conduit.

2. An airmoistener comprising an opentopped water receptacle; a heating chamber extending continuously around the side walls of said water receptacle, the receptacle and heating chamber being separated only by said side. walls; and a'conduit extending along the central portion of the bottom of said Water receptacle and communicating with opposite ends of said heating chamber, said chamber being provided with inlet and outlet apertures at its opposite ends.

3. An air moistener comprising an open topped Water receptacle; a heating chamber extending continuously around the side walls of said Water receptacle, the receptacle and heating chamber beingseparated only by said side walls; a conduit extending along the central portion of the bottom of said water receptacle and communicating with opposite ends of said heating chamber said chamber being provided with inlet and outlet apertures substantially in line with said conduit; and a removable top comprising a plate provided with a plurality of rows of apertures, a downwardly extending flange provided on its lower margin wrth slots, and a grid having a sliding connection with said plate and provided with a plurality of bars adapted to register with the rows of apertures in said plate.

ROBERT HARDIE. Witnesses:

JoHN A. BnacsrRoM, WILLIAM \r,

mules of this patent may be obtained for five cents each, by addressing the "Gommiasioner of E'atenta,

Washington, D. 0." 

